Well, the Aune x1s really sounds good and very very clean, with big sound stage and precise positioning.
Compared with the FiiO e10K that I got, there is like, much more light in the rather much bigger room all of a sudden :). Everything is clearer and especially you sense that once you start playing good files, though there is a big difference in li'l' dirty mp3's too. So, I really like it, for the sound, as it makes anything else sound...
